Image & Design

multimath

Fast image math in WebAssembly and JS for efficient computations.

Status
Generally available
Last checked
Checked · Oct 16, 2026
License
Open source
Pricing
Free tier · from $0
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What it is

Multimath is a library that enables developers to perform fast mathematical operations on images using both WebAssembly and JavaScript, enhancing performance and efficiency in web applications requiring complex image processing.

Multimath stands out by offering a blend of JavaScript and WebAssembly to perform fast mathematical operations on images, providing both flexibility and performance.

When it fits — and when it doesn’t

A good fit for

  • Web developers who need to perform fast image math operations without sacrificing performance

  • Teams building real-time image processing features in web applications

  • Developers working on server-side tasks that require efficient image manipulation

Look elsewhere if

  • Projects requiring extensive GPU acceleration for image processing

  • Applications where the overhead of WebAssembly setup is prohibitive

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Steep learning curve for non-JavaScript developers

    API heavily relies on JavaScript and WebAssembly patterns, which may be unfamiliar to developers from other language backgrounds

  2. 02

    Limited documentation and examples

    Official documentation lacks comprehensive guides and practical examples for complex use cases

  3. 03

    Performance degradation on lower-end devices

    WebAssembly and JavaScript operations may not perform optimally on older or less powerful hardware, leading to slower processing times

  4. 04

    Small community and limited support

    The open-source project has a small contributor base and fewer active users compared to more established libraries like OpenCV.js

What it does well

  • Fast image math operations using WebAssembly and JavaScript

  • Optimized for performance in web applications

  • Supports both client-side and server-side execution

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up multimath

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →